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Exhaust DIY modification drawing wanted for 1986 32 carrera

Posted: Thu Jul 30, 2015 11:46 am
by Jasper
I previously had a drawing on how to modify a Porsche exhaust to twin outlet and lost it, anyone got a link ?
Appreciate any help and advice.
What I am hoping to do is replace the pre exhaust pipe with straight thru pipe and fit a second outlet on the right hand side.
Are there any recommendations that I can do to increase power/efficiency whilst fitting the second outlet ?

All wisdom welcome.